过磷酸钙(过磷酸石灰)和硫酸铵,从肥料性质来看,可以混合施用。有没有混合施用的必要,那就要看当地条件是不是同时需要施用氮肥和磷肥。可以混合施用的原因为:一、过磷酸钙在化学性质上属于酸性肥料,主要成分为磷酸一钙及硫酸钙(石膏),与石灰性质不同:过磷酸钙一般是用硫酸处理磷酸三钙而制成的,用作磷酸三钙的原料为磷矿或骨粉。制造的 Superphosphate (superphosphate lime) and ammonium sulfate, from the nature of fertilizer, can be mixed application. There is no need to mix the application, it depends on local conditions is not the same time the need to apply nitrogen and phosphate fertilizer. Can be mixed for the following reasons: First, the superphosphate is chemically acidic fertilizer, the main component of calcium phosphate and calcium sulfate (gypsum), and the nature of different lime: SSP is generally treated with phosphoric acid and tricalcium phosphate Made of raw materials used as tricalcium phosphate rock phosphate or bone meal. made